v3.26.1
Provisions (Details)
$ in Millions
 6 Months Ended
Jun. 30, 2026
USD ($)
Reconciliation of changes in other provisions [abstract]  
Other provisions, beginning balance $ 3,441
Other provisions, ending balance 2,942
Total  
Reconciliation of changes in other provisions [abstract]  
Other provisions, beginning balance 2,806
Additions 371
Amounts utilised (803)
Unused amounts reversed (107)
Exchange and other movements 9
Other provisions, ending balance 2,276
Restructuring costs  
Reconciliation of changes in other provisions [abstract]  
Other provisions, beginning balance 578
Additions 198
Amounts utilised (254)
Unused amounts reversed (52)
Exchange and other movements 16
Other provisions, ending balance 486
Legal proceedings and regulatory matters  
Reconciliation of changes in other provisions [abstract]  
Other provisions, beginning balance 1,662
Additions 69
Amounts utilised (440)
Unused amounts reversed (13)
Exchange and other movements (1)
Other provisions, ending balance 1,277
Customer remediation  
Reconciliation of changes in other provisions [abstract]  
Other provisions, beginning balance 69
Additions 47
Amounts utilised (15)
Unused amounts reversed (6)
Exchange and other movements 0
Other provisions, ending balance 95
Other provisions  
Reconciliation of changes in other provisions [abstract]  
Other provisions, beginning balance 497
Additions 57
Amounts utilised (94)
Unused amounts reversed (36)
Exchange and other movements (6)
Other provisions, ending balance 418
Contractual commitments  
Reconciliation of changes in other provisions [abstract]  
Other provisions, beginning balance 635
Net change in expected credit loss provision and other movements 31
Other provisions, ending balance $ 666